[Features] ● The size of the socket can be distinguished by its color. ● Attach an extension bar to increase the applied torque. ●The unique mechanism prevents the insertion angle from popping out and falling off, making it safe. ●Equipped with a holding function that securely fixes the bolt to the tip without magnetic force. ●The thickness of the head part is very slim and has excellent workability in narrow spaces. ●The product is light and can be operated with less burden. ●It is very sturdy.